Regulator or controller



Patented Dec. 20, 1927.

' En 5S nMBUleY/MLEAN, `OF RO'OKLYN,NEW YORKA'SSGNOR'TO THE-ENGINEERCOMPANY,

` OF YORK, N. Y., A CORPORATION OF YORK.

original application-madame 25, lzogs'erial No. 391,779. 'Divided and 'this application-inea September' 2Q, 19241,.'

"My invention relates to new and useful improvements -n regulators or controllers, and especially contemplates a regulator Which will loe Operative 'as a motor or 'regulator lo actuate or regulate any desired an pai'atue or'ele'ment inaccordance with variations ot the Volume or amount Oia liuid flowing through vthe regulator-for controller.

The invention consists iu the novel l`conlstruction to be more uflly described hereinafter, 4and the novelty "of Which will `he partic'ularlyv pointed out and .distinctly claimed.

1 havefully and 'clearly illustrated `a preferred 'embodiment of mjy-invention in the accompanying drawingsto be taken: as -a partiottl'iis specification, and wherein;d

Figure 1 is a 'transverse section 'through onet'orm of the invention;

v 'Fig-2 isa-plan vienT ofthe-flower portion Oi` half Olthe casing` ofthe device shown in Fig. 1,- and /Figg-B is a top `plan `T`View, ,par'tlyin vsec tion,fof ,the npper :portion erhalt `ofthe casing of the device Shown in Fig. 1, certain parts-being omitted forthe salie :of clarnese.

lThis'z} 'p'lication vis a division of my prior 'application for 'Letters Patent, "liled-J une 25,1f1920,and-bearing ySerial Niu'irbe'r 391,7 7

Referringto the fdrwvi'fngsv by characters of reference-150 deSignateS y'a' lower 'halfor 'member ofi-a Vdiaphra'gn chamber, the np'per half ol`=\\"l1ich is shown :at 151, said m'enr bers being connected by vvheaded bolts v159, and' nuts' thereon, Said nen'loers clanrpi'ng heltweeirtliem 'afliexi'ble dialvhragm 153 shirttingoli' "com'nlimitation b'ctwveen Said meinloe'i's, except 'asv hereinafter ldest-,rihed. Integral withtheine'mher 150 is van inlet con- "nection 1511 having a.' port 155leidiiflgtov4 an opening 156 through the `flange off the meni- 'ber #15,0- leading -into a passage f 157 infthe Wall of ithefme'njher 151,*Said lpaseage157 communicating with the space 1in saidv inem- 'her 151 above the diaphragm 153. The connetion 154 is connected -'to 'anys'nitahle 'source 'of ffluid, preferalolyl under pressure', for example, oil under lpressiue''l'ronra pump (not WshoWn) l" Connected-to? the' l'owzver niemloer 150 -isfanoutlet eonnee'tion 158,(Fig. 2) opening into thelower'chambeiof the device Ylo'e'lnv-"theV diaphragm 153, Lsaid -connection 15S-being' eonnec'tedl'to'a 'dpi-pe (notshovn) 'leading-ronr VSaid 're'gilato'i` toy any 'Suitable point, 'forV example, *an Oil bur-'ner (not Serial VNO. 502,639. 3

valve, which, in'turn, connnunicates withv a. passage 164 leadinginto the member '150 beneath the 'diaphragm 153. Inorcle'r to provide't'o'r a tight yit,- thevalve 161 is pref-y erably tapered and Iittedito a/eor'respondinglygtapered bore in fthe Caeing 160'and is urged to "its 'seat by a spring165 'surrounding a stem l166 fon' said Valve, and-'at one end abutting` a packing-'gland 167 threaded into the casing 160:`an'd at its other endyabutting the-upper end of the said valve'161. The i valve'is provdedwth ya head 168fadap`ted to he engaged hy a 'Wrench' or Aother suitable means byfwhi'ch 'it may 'be rotated. Confn'eet'e'd to the diaphragm 153,'inany suitable `'manner,'as vat-169,-is-one end 170 of av rod 171 extending upwardvthrough =a stu'ili'nghOX 172 in the upper Wall of themem'ber 151, the upper lend of saidrod 171 being pivotaflly eonnectedyas at 17 3,'to a le'ver174, lone yend of which.is-'p'ivotech as at 175,to the member 151,a'ndthe Otherend Ot' which ils-adapted tofbe connected by n ieXilole connection 17 'to any'devi'eewhioh is'adaptell 'to he operated.' regi'ilatedfo'r controlled hy the regl-dater. The n'ieans for eonhecbing the rod 171ftolthe diaphragm;eoneisls olf dished Aplail'e 1710:having4 a I'flange 17 0" se# cured by a' {luid-tight joint 'tothe lower tace ot' the diaphragm hyyn'leaneof Screws 17()c extending :through said fflange, packing Washers 17()d vbetween the liange and the diaphragm, fand threaded tinto la' Washer o'i ring on the upper SideO-'the diaphragm. The dis'hedlpotio'n of the plate 17 0a extends upwardthrough"a central openingr inthe diaphragm andhasrfa central opening 170t throi'igh Whichthe rod171 extends, the rod hav-ing lbenea'th said'platean enlargement or head- 170 of greater diameter'than thelopen ingy insaid plateso that the rodand-plate are connected. The lluider side I'of'they plate is cloeed'against leakage fbyia plate 17 `1g held lin* place J'by the` ScrewsA 170.l On the Casing Of'fthelielgulatoris a Ilnafc'ket 178 between which #and the lever .174- i's suitably. ysupported and held a compression spring 179 tending to move the lever 174 upward. ,One end of the spring 179 is seated in a spring seat 180 supported on-one end of an adjusting screw' 181 threaded through thebraclret 178, and by means of which the resistance of the spring 179 to downward movement of the lever 174 may be adjusted. The screw 181 may be locked in adjusted position by a jam nut 182 threaded thereon. Supported by the bracket 178 is a scale member 183 having a scale 184 calibrated to indicate gallons per minute or other unit of timerate of flow of fuel to the burner, the upper edge. of said lever 174 cooperating as a pointer with said scale. 'It will be understood that said scale may be calibrated to indicate any useful information measurable by position or movement of the diaphragm 153. The operation of this device is as follows The fluid enters the connection 154 and flows through port 155 and the opening 157 into the space above the diaphragm 153, thence through the port 159 and valve ports 162, 163 and port 164 into the space beneath the diaphragm 153, from which space it flows outward through outlet 158. The valve 161 is operable to cause a restriction to the 'flow between the upper and lower chambers of the regulator having the dia- Y phragm between them, so as to create a relnected.

duction in pressure in the chamber beneath the diaphragm, this reduction in pressure being employed to cause movement of the diaphragm to operate the lever 174 to control the dampers. It will be understood that the valve 161 is set so as to result in a restriction giving the ydesiredvdifference in pressure between the fluid in the two chambers, and that any variations of this difference of pressure, dueto fluctuations in the volume of flow, will operate the diaphragm to correspondingly regulate or operate the element or mechanism to which it isY con- The chainberson opposite sides of the diaphragm 153 arerpreferably designed so as to be of equal volume and substantially symmetrical in shape so that the ei'ect of lthe yvelocity head of the fluid flowing through them-,will not tend to move the diaphragm, any action of the velocity head on one side of `the diaphragm being counterbalancedby a similar action on the other side. The result of the neutralizingy or counterbalancing of the velocity head in the two chambers, is that the diaphragm is ac tuated by the difference 'in static pressure due to the restriction in the passage between the two chambers. It will thus be seen that the greater` the amount of oil flowing through the regulator, the greater will be difference in' pressure between vthe fluid above the diaphragm 153 and that below said diaphragm, resulting in the excess pressure above the diaphragm moving the' rod 171 to swing the lever 174. If the amount Vof fluid flowing through the regulator is reduced, it results in a reduction ofthe difference in pressure between the oil above variations in difference of pressure, due to variations ofy volume of flow which cause the travel'of the rod`171, can be made `to give the desired operation of the part to which said rod is connected to be operated thereby. y What I claim and desire to secure by Letters Patent of the United States 'is:,-

1. A regulator comprisingtwo chambers separated Iby a flexible diaphragm, a. restricted passage connecting said chambers', an inlet for the fluid connected to oneof said chambers, an outlet connected to the other ofl said chambers, said inlet and outlet being connected to their respective chambers at opposite sides thereof lfrom said restricted passage, the parts being constructed and arranged to cause the fluid to flow rfrom the inlet through one chamber substantially parallel to said diaphragm, through said restricted passage and then through the other chamber ysubstantially parallel to said diaphragm to the outlet whereby the forces eX- erted on opposite sides of said diaphragm due to the flow of fluid are substantially equal, whereby the diaphragm is operated by the difference in static pressure in said chambers, and operating means actuated by the movement of said diaphragm.`

2. A regulator comprising two chambers separated by' a flexible diaphragm, restricted passage connecting said chambers at one side thereof, an inlet for the fluid conicel lioy

nected to one of said chambers and an, outlet connected to theother of said chambers at substantially the opposite sides from said restricted opening, the chambers on opposite sides of the diaphragm being formed so as to be of substantially equal volume and symmetrical in shape, whereby the force eX- erted by the fluid flowing through said chambersdue to the velocity thereof' is sub.'

stantially equal on opposite r'sides of the diaphragm, theparts being constructed and larranged to cause the diaphragm to be af'- 3. A regulator comprising twol chambers separated by a flexible diaphragm, a` restricted passage connecting said chambers, an 1nlet for the fluid connected kto one of said chambers, an outlet connected to the other of said chambers, Said inlet and outlet being connected to their respective chambers at points remote trom said passage whereby the fluid flows through both of said chaml0 due to the flow of Huid are substantially equal, whereby the diaphragm is operated by the difference in static pressure insaid chambers, an indicator, and means actuated by the diaphragm cooperating with said indicator to show the quantity of fluid flowing through the regulator.

In testimony whereof I have hereunto signed my name. v

EMBURY MCLEAN. 

